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/* GNU gettext for C#
* Copyright (C) 2003-2004, 2007 Free Software Foundation, Inc.
* Written by Bruno Haible <bruno@clisp.org>, 2003.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* This program dumps a GettextResourceSet subclass (in a satellite assembly)
* or a .resources file as a PO file.
*/
using System; /* Object, String, Type, Console, Exception */
using System.Reflection; /* Assembly, MethodInfo, ConstructorInfo */
using System.Collections; /* Hashtable, DictionaryEntry */
using System.IO; /* BufferedStream, StreamWriter, TextWriter, FileNotFoundException, Path */
using System.Text; /* StringBuilder, UTF8Encoding */
using System.Resources; /* ResourceReader */
using GNU.Gettext; /* GettextResourceSet */
namespace GNU.Gettext {
public class DumpResource {
private TextWriter Out;
private void DumpString (String str) {
int n = str.Length;
Out.Write('"');
for (int i = 0; i < n; i++) {
char c = str[i];
if (c == 0x0008) {
Out.Write('\\'); Out.Write('b');
} else if (c == 0x000c) {
Out.Write('\\'); Out.Write('f');
} else if (c == 0x000a) {
Out.Write('\\'); Out.Write('n');
} else if (c == 0x000d) {
Out.Write('\\'); Out.Write('r');
} else if (c == 0x0009) {
Out.Write('\\'); Out.Write('t');
} else if (c == '\\' || c == '"') {
Out.Write('\\'); Out.Write(c);
} else
Out.Write(c);
}
Out.Write('"');
}
private void DumpMessage (String msgid, String msgid_plural, Object msgstr) {
int separatorPos = msgid.IndexOf('\u0004');
if (separatorPos >= 0) {
String msgctxt = msgid.Substring(0,separatorPos);
msgid = msgid.Substring(separatorPos+1);
Out.Write("msgctxt "); DumpString(msgctxt);
}
Out.Write("msgid "); DumpString(msgid); Out.Write('\n');
if (msgid_plural != null) {
Out.Write("msgid_plural "); DumpString(msgid_plural); Out.Write('\n');
for (int i = 0; i < (msgstr as String[]).Length; i++) {
Out.Write("msgstr[" + i + "] ");
DumpString((msgstr as String[])[i]);
Out.Write('\n');
}
} else {
Out.Write("msgstr "); DumpString(msgstr as String); Out.Write('\n');
}
Out.Write('\n');
}
// ---------------- Dumping a GettextResourceSet ----------------
private void Dump (GettextResourceSet catalog) {
MethodInfo pluralMethod =
catalog.GetType().GetMethod("GetMsgidPluralTable", Type.EmptyTypes);
// Search for the header entry.
{
Object header_entry = catalog.GetObject("");
// If there is no header entry, fake one.
// FIXME: This is not needed; right after po_lex_charset_init set
// the PO charset to UTF-8.
if (header_entry == null)
header_entry = "Content-Type: text/plain; charset=UTF-8\n";
DumpMessage("", null, header_entry);
}
// Now the other messages.
{
Hashtable plural = null;
if (pluralMethod != null)
plural = pluralMethod.Invoke(catalog, new Object[0]) as Hashtable;
foreach (String key in catalog.Keys)
if (!"".Equals(key)) {
Object value = catalog.GetObject(key);
String key_plural =
(plural != null && value is String[] ? plural[key] as String : null);
DumpMessage(key, key_plural, value);
}
}
}
// Essentially taken from class GettextResourceManager.
private static Assembly GetSatelliteAssembly (String baseDirectory, String resourceName, String cultureName) {
String satelliteExpectedLocation =
baseDirectory
+ Path.DirectorySeparatorChar + cultureName
+ Path.DirectorySeparatorChar + resourceName + ".resources.dll";
return Assembly.LoadFrom(satelliteExpectedLocation);
}
// Taken from class GettextResourceManager.
private static String ConstructClassName (String resourceName) {
// We could just return an arbitrary fixed class name, like "Messages",
// assuming that every assembly will only ever contain one
// GettextResourceSet subclass, but this assumption would break the day
// we want to support multi-domain PO files in the same format...
bool valid = (resourceName.Length > 0);
for (int i = 0; valid && i < resourceName.Length; i++) {
char c = resourceName[i];
if (!((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c == '_')
|| (i > 0 && c >= '0' && c <= '9')))
valid = false;
}
if (valid)
return resourceName;
else {
// Use hexadecimal escapes, using the underscore as escape character.
String hexdigit = "0123456789abcdef";
StringBuilder b = new StringBuilder();
b.Append("__UESCAPED__");
for (int i = 0; i < resourceName.Length; i++) {
char c = resourceName[i];
if (c >= 0xd800 && c < 0xdc00
&& i+1 < resourceName.Length
&& resourceName[i+1] >= 0xdc00 && resourceName[i+1] < 0xe000) {
// Combine two UTF-16 words to a character.
char c2 = resourceName[i+1];
int uc = 0x10000 + ((c - 0xd800) << 10) + (c2 - 0xdc00);
b.Append('_');
b.Append('U');
b.Append(hexdigit[(uc >> 28) & 0x0f]);
b.Append(hexdigit[(uc >> 24) & 0x0f]);
b.Append(hexdigit[(uc >> 20) & 0x0f]);
b.Append(hexdigit[(uc >> 16) & 0x0f]);
b.Append(hexdigit[(uc >> 12) & 0x0f]);
b.Append(hexdigit[(uc >> 8) & 0x0f]);
b.Append(hexdigit[(uc >> 4) & 0x0f]);
b.Append(hexdigit[uc & 0x0f]);
i++;
} else if (!((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')
|| (c >= '0' && c <= '9'))) {
int uc = c;
b.Append('_');
b.Append('u');
b.Append(hexdigit[(uc >> 12) & 0x0f]);
b.Append(hexdigit[(uc >> 8) & 0x0f]);
b.Append(hexdigit[(uc >> 4) & 0x0f]);
b.Append(hexdigit[uc & 0x0f]);
} else
b.Append(c);
}
return b.ToString();
}
}
// Essentially taken from class GettextResourceManager.
private static GettextResourceSet InstantiateResourceSet (Assembly satelliteAssembly, String resourceName, String cultureName) {
Type clazz = satelliteAssembly.GetType(ConstructClassName(resourceName)+"_"+cultureName.Replace('-','_'));
ConstructorInfo constructor = clazz.GetConstructor(Type.EmptyTypes);
return constructor.Invoke(null) as GettextResourceSet;
}
public DumpResource (String baseDirectory, String resourceName, String cultureName) {
// We are only interested in the messages belonging to the locale
// itself, not in the inherited messages. Therefore we instantiate just
// the GettextResourceSet, not a GettextResourceManager.
Assembly satelliteAssembly =
GetSatelliteAssembly(baseDirectory, resourceName, cultureName);
GettextResourceSet catalog =
InstantiateResourceSet(satelliteAssembly, resourceName, cultureName);
BufferedStream stream = new BufferedStream(Console.OpenStandardOutput());
Out = new StreamWriter(stream, new UTF8Encoding());
Dump(catalog);
Out.Close();
stream.Close();
}
// ----------------- Dumping a .resources file ------------------
public DumpResource (String filename) {
BufferedStream stream = new BufferedStream(Console.OpenStandardOutput());
Out = new StreamWriter(stream, new UTF8Encoding());
ResourceReader rr;
if (filename.Equals("-")) {
BufferedStream input = new BufferedStream(Console.OpenStandardInput());
// A temporary output stream is needed because ResourceReader expects
// to be able to seek in the Stream.
byte[] contents;
{
MemoryStream tmpstream = new MemoryStream();
byte[] buf = new byte[1024];
for (;;) {
int n = input.Read(buf, 0, 1024);
if (n == 0)
break;
tmpstream.Write(buf, 0, n);
}
contents = tmpstream.ToArray();
tmpstream.Close();
}
MemoryStream tmpinput = new MemoryStream(contents);
rr = new ResourceReader(tmpinput);
} else {
rr = new ResourceReader(filename);
}
foreach (DictionaryEntry entry in rr) // uses rr.GetEnumerator()
DumpMessage(entry.Key as String, null, entry.Value as String);
rr.Close();
Out.Close();
stream.Close();
}
// --------------------------------------------------------------
public static int Main (String[] args) {
try {
if (args.Length > 1)
new DumpResource(args[0], args[1], args[2]);
else
new DumpResource(args[0]);
} catch (Exception e) {
Console.Error.WriteLine(e);
Console.Error.WriteLine(e.StackTrace);
return 1;
}
return 0;
}
}
}
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